##gff-version 3
##sequence-region   seq1 1 10000
##sequence-region   seq2 1 10000
seq1	.	gene	1000	9000	.	+	.	ID=gene1
seq1	.	exon	1000	9000	.	+	.	Parent=gene1
seq2	.	gene	100	900	.	+	.	ID=gene2
seq2	.	exon	100	900	.	+	.	Parent=gene2
